1. Plotting Ordered Pairs Grade 6 Data Management Unit

2. In the beginning of the year, I created a seating chart for my classes
In the beginning of the year, I created a seating chart for my classes. I created 5 rows of desks with 4 desks in each row. Brian sits in the third row at the second desk (3,2) and Dwanda sits in the second row at the third desk (2,3). Are these seats the same?
No!! The seats (3,2) and (2,3) are called ordered pairs because the order in which the pair of numbers is written is important!!

3. Who is sitting in desk (4,2)?A B C D E O 3 F G H I J T K L M N 2 A P Q R S 1 1 2 3 4 5 6

4. Ordered pairs are used to locate points in a coordinate plane.
y-axis (vertical axis) 5 -5 5
x-axis (horizontal axis) -5
origin (0,0)

5. Coordinate Plane
A Cartesian coordinate system is a coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances from the point to two fixed perpendicular directed lines, measured in the same unit of length.

6. In an ordered pair, the first number is the x-coordinate
In an ordered pair, the first number is the x-coordinate. The second number is the y-coordinate. Graph. (-3, 2) 5 • -5 5 -5

7. What is the ordered pair for A?5
(3, 1)
(1, 3)
(-3, 1)
(3, -1)
• A -5 5 -5

8. What is the ordered pair for B?
(3, 2)
(-2, 3)
(-3, -2)
(3, -2) 5 -5 5
• B -5

9. What is the ordered pair for C?
(0, -4)
(-4, 0)
(0, 4)
(4, 0) 5 -5 5
• C -5

10. What is the ordered pair for D?
(-1, -6)
(-6, -1)
(-6, 1)
(6, -1) 5 -5 5
• D -5

11. Write the ordered pairs that name points A, B, C, and D.5
A = (1, 3)
B = (3, -2)
C = (0, -4)
D = (-6, -1)
• A -5 5
• D
• B
• C -5

12. The x-axis and y-axis separate the coordinate plane into four regions, called quadrants.II
(-, +) I
(+, +)
III
(-, -) IV
(+, -)

13. Name the quadrant in which each point is located (-5, 4)II
III IV
None – x-axis
None – y-axis

14. Name the quadrant in which each point is located (-2, -7)II
III IV
None – x-axis
None – y-axis

15. Name the quadrant in which each point is located (0, 3)II
III IV
None – x-axis
None – y-axis